Improvement in insulators for telegraph-lines



E. A. MERRELL.

Y n Insulators for Telegraph Lines.

No. 38,5l2.

Patented May 6,1873.

, i NK m da fd /c co. N. Mosso/MES mocfss) UNITED STATES PATENT OFFICE.

EDWARD A. MERRELL, OF EAST LYME, CONNECTICUT.

IMPROVEMENT lN INSULATORS FOR TELEGRAPH-LINES.

S-ecification forming part of Letters Patent No. 138,512, dated May 6,1873; application led October 19, 1872.

To all whom it may concern:

Be it known that I, EDWARD A. MERRELL, of East Lyme, in the county ofNew London and State of Connecticut, have invented cer tain new anduseful Improvements in Telegraph'Insulators, of which the following is aspecification, reference being had to the accompanying drawing, inwhich- Figure l is au elevation or View of the complete insulator. Fig.2 is a central vertical section of the same. Fig. 3 is a top view of theinsulator with its cap removed. Fig. 4 is a view looking into the cap,which is turned upside down.

The insulator is made of glass or other nonconducting material, and iscomposed of the body A and the cap B which tits upon the body A. Thereis a groove, a, in the top of the body, in which lies the wire C. This'groove is curved so as to hold the wire hrm from slipping sidewise.JThe cap B lits down upon the top of the body A and holds the wire down.This cap has half-circular grooves b out into it where the wire passesout. The other half of the wire sets into the body A. The letter Dindicates a screw-bolt, which passes down through the cap B and body Aand screws into the common wooden pin, which pin fits up into the recessS.

I claim as my invention- The combination ofthe body A, made ofinsulating material, having the cavity S for a. supporting-pin and thecurved groove a, the cap B made of insulating material and thescrew-bolt D, the whole constructed, arranged, and designed for use,substantially as and for the purpose set forth.

EDWARD A. MERRELL.

Vitnesses:

WM. E. SrMoNDs, W. B. RIPLY.

